Many car makers are trying to save the environment. That’s why they are all building cars that don’t use gasoline. It’s because cars need gasoline to move. And when they burn gasoline, carbon dioxide and many gases get released into the air. So, the so
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There is one color that means danger. What color is that? It’s the color red. At a railroad crossing, flashing red lights warn cars to stay back. A red light at the traffic intersection tells cars to stop, so they don’t run into other cars. And when a d
Space is really amazing and beautiful. Don’t you want to look at the stars or the moon? That’s why we have telescopes. Well, there are some super telescopes. They help look at stars in far away galaxies. Recently, scientists started building the world’
Wow, look at that picture. It’s the picture of a space shuttle waiting to go up into space. The name of the shuttle is Endeavour. You guys all know that there is a space center in outer space, right? Well, Endeavour’s job is to deliver goods and astrona
Ah, there’s nothing better than a good night sleep. While you sleep, what do you think happens to your brain? Of course you are deep in your sweet dreams, but your brain cells are still very busy! Just like all the cells in the body, brain cells need res
There are many whales in the ocean. But did you know there is only one all-white humpback whale in the world? Off the coast of Australia a whale named Migaloo is often seen. Humpback whales are really big. An adult whale is about 12-16 meters long. And i
Famous Korean scientist Hwang Woo-suk succeeded in cloning an American hero dog. The dog’s name was Trakr and it was a German shepherd. He helped when terrorists attacked New York on September 11, 2001. He became a hero after saving many people’s lives.
A virus is a very small organism. It is much smaller than a cell. It is a kind of germ that can cause disease in humans, animals and plants. Some viruses are shaped like spirals, while others look like soccer balls. A few big viruses can have both forms.
We cannot live without oxygen. Oxygen is a colorless gas that exists in the air. All plants and animals also need it in order to live. Without it, we would not be able to breathe! This week, let’s learn some amazing facts about this important gas.
Recently, researchers in China succeeded in creating a type of stem cell, using cells from pig ears and bone marrow. The stem cell is capable of developing into any type of cell in the body. The researchers hope their discovery will help scientists develo
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